Attendance percentage is the fraction of classes you have actually attended out of the total held. Indian colleges typically require 75% to be eligible for exams. The calculator also tells you how many of the remaining classes you must attend to stay above the threshold.
What is Attendance?
Most Indian colleges and schools enforce a minimum attendance rule. The standard is 75% — anything below means you may be barred from end-semester exams or face other penalties. Some institutions are stricter (80% in IITs, 90% in some medical colleges) and some give grace with valid reasons.
The calculator does two things. First, it computes your current attendance percentage. Second, given the classes left in the semester, it tells you how many of those you must still attend, and how many you can safely skip without falling below the threshold.
Attendance is calculated cumulatively over the semester. A bad streak in week 4 can be recovered if you attend everything from week 5 onward. The calculator helps you plan exactly how aggressive that recovery needs to be.
Attendance math
- Attended
- Classes attended so far—your current attendance count
- Held
- Classes held so far—total classes the institute has conducted
- Remaining
- Classes left—scheduled but not yet held
How to use this calculator
Four inputs: attended, total held, required %, and remaining classes.
Enter classes attended
How many you have actually been present for.
Enter total held
How many your college has conducted (counted from the attendance record).
Set required %
Default 75. IITs use 80 in some courses; medical colleges may require 90.
Enter remaining classes
Estimated number scheduled before the semester ends.
When this calculator is most useful
Mid-semester check
Are you on track for 75%? If not, plan recovery before it is mathematically too late.
Planning a vacation
Want to skip a week before Diwali? See exactly how many classes that costs you and whether you can afford it.
Returning after illness
Missed two weeks for the flu? Calculator shows exactly how perfect attendance for the rest of the semester needs to be.
End-of-semester decision
If you are at 72% and 5 classes remain, the calculator confirms whether attending all 5 will get you to 75%.
Glossary
- Attendance percentage
- Fraction of classes attended, expressed as %.
- Detained
- Barred from appearing in end-semester exams due to attendance below threshold.
- Medical leave
- Documented illness leave that may be excluded from the attendance count, depending on policy.
- Aggregate attendance
- Combined attendance across all subjects in a semester. Used as the primary metric in most colleges.